mkdir ~/Desktop/screenshots
defaults write com.apple.screencapture location ~/Desktop/screenshots
killall SystemUIServer/Users/username/Desktop/screenshots.New screenshots (?+Shift+3, 4 or 5) are now stored in ~/Desktop/screenshots.
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Fiz esse script (cedilha.sh) pra fazer o c-cedilha (ç) funcionar no Ubuntu 16.04. Como é uma tarefa chata que eu já tive que fazer muitas vezes fica mais fácil pra mim ter um script pra fazer isso e pode ser que seja útil a outras pessoas. Infelizmente é uma solução que exige baixar e executar como root um script da internet. Eu recomendo que você leia o script e entenda o que está acontecendo antes de executá-lo. Esse script altera vários arquivos importantes e ele faz um backup (.bak) desses arquivos.
[bash]wget https://raw.githubusercontent.com/silveira/cedilha.sh/master/cedilha.sh
sudo bash cedilha.sh[/bash]
Por favor, se o script funcionou pra você também, diga nos comentários. Se você não está usando Ubuntu 16.04 e quer testar o script ainda assim, edite o script e remova a verificação no inicio do programa.
[bash]
#!/bin/sh
file="/tmp/myfile"
while read line; do
echo $line
done < "$file"
[/bash]
sudo find /proc -maxdepth 2 -name maps -exec grep -HE ‘\(deleted\)’ {} \; | cut -d/ -f3 | sort -u | xargs –no-run-if-empty ps
Looking for libssl in specific:
sudo find /proc -maxdepth 2 -name maps -exec grep -HE ‘/libssl\.so.* \(deleted\)’ {} \; | cut -d/ -f3 | sort -u | xargs –no-run-if-empty ps
Killing all process using a deleted version of libssl:
sudo find /proc -maxdepth 2 -name maps -exec grep -HE ‘/libssl\.so.* \(deleted\)’ {} \;| cut -d/ -f3 | sort -u | xargs –no-run-if-empty sudo kill
This script create a thumbnail with width 100 of each png file in the actual directory.
#!/bin/sh
for i in *.png
do
echo "convert -thumbnail 100 $i $i"
convert -thumbnail 100 $i $i
done
A simple code to show the script engines installed in your system.
As it uses the JSR-223 you need at least java 6.
import javax.script.ScriptEngineManager;
import javax.script.ScriptEngineFactory;
import java.util.List;
public class ListEngines {
public static void main(String[] args){
ScriptEngineManager manager = new ScriptEngineManager();
List engines = manager.getEngineFactories();
for(ScriptEngineFactory engine: engines){
String name = engine.getEngineName();
String lang = engine.getLanguageName();
String ver = engine.getLanguageVersion();
System.out.println(name+" "+lang+" "+ver);
}
}
}
$ java -version
java version “1.6.0_0”
OpenJDK Runtime Environment (build 1.6.0_0-b11)
OpenJDK Client VM (build 1.6.0_0-b11, mixed mode, sharing)
$ javac ListEngines.java
$ java ListEngines
Mozilla Rhino ECMAScript 1.6
For now I just have Rhino ECMAScript (JavaScript) engine accessible that comes with Java 6. I’m trying now to call Jython and JRuby code.
Right in this moment you can choose between three options to develop JavaFX:
I did this little script to download the last version of JavaFX continuos build and install it for you.
#!/bin/sh
envfile=$HOME/.bash_profile
#download and unpatch the last build of JavaFx
mkdir jfx
cd jfx
wget http://openjfx.java.sun.com/hudson/job/openjfx-compiler/lastBuild/artifact/openjfx-compiler/dist//*zip*/dist.zip
unzip dist.zip
rm dist.zip
#set files at bin folder as executable
chmod +x dist/bin/*
#add those executables to the path
echo "PATH=\$PATH:`pwd`/dist/bin" >> $envfile
Save this script as install_jfx.sh and execute it. Probably you want to execute it at you home directory. If you want to install JavaFX to root change envfile for /root/.bash_profile, if you want to install to all users change for /etc/profile. I tested this script successfully on my Ubuntu 8.04.
After that open a new terminal and try to see if javafx, javafxc and javafxdoc are available. You can test your enviroment with this simple program.
import javafx.ui.*;
import java.lang.*;
Frame {
visible: true
content: FlowPanel {
content: Button {
var n = 0
text: bind Integer.toString(n)
action: function() {
n++;
}
}
}
}
Save it as Counter.fx, compile with javafxc Counter.fx and so execute it with javafx Counter.fx.
To know more, take a look into the preliminary JavaFX API or in the article Using JavaFX GUI Toolkit.
As the earlies versions of OpenSolaris, my terminal is without colors. That’s a little annoying. As the default user uses Bash you can configure your Bash options in the file ~/.bashrc. Insert in the last lines of your .bashrc file:
alias ls=’ls –color=auto’
Save, close and open your terminal (or just type source ~/.bashrc).
An simple color picker that can be also used as a gadget.
import javafx.ui.*;
import javafx.ui.canvas.*;
var colors = [red:Color, orange:Color, yellow:Color, green:Color,
cyan:Color,blue:Color, magenta:Color, gray:Color];
var chosenColor: Paint;
chosenColor = black:Color;
var x = 120;
var y = 70;
Canvas{
content: Group{
transform: bind translate(x,y)
content: [Star{
points: sizeof colors
rin: 30
rout: 50
fill: bind chosenColor
onMouseDragged: operation(e) {
x += e.localDragTranslation.x;
y += e.localDragTranslation.y;
}
},
foreach (i in [1..sizeof colors]) Circle {
var: self
transform: [rotate(i*360/sizeof colors,0,0), translate(50,0)]
radius: 10
fill: colors[i%sizeof colors]
onMouseClicked: operation (e){
chosenColor = self.fill;
}
}]
}
}
Two simple JavaFX code handling onMouseDragged event.
import javafx.ui.*;
import javafx.ui.canvas.*;
Canvas {
content: Circle {
var x = 50
var y = 50
transform: bind translate(x, y)
radius: 30
fill: red
onMouseDragged: operation(e) {
x += e.localDragTranslation.x;
y += e.localDragTranslation.y;
}
}
}
import javafx.ui.*;
import javafx.ui.canvas.*;
Canvas {
content: Circle {
var x = 50
var y = 50
var radius = 30
transform: bind translate(x, y)
radius: bind radius
fill: red
onMouseDragged: operation(e) {
if (e.button == 1){
x += e.localDragTranslation.x;
y += e.localDragTranslation.y;
}
if (e.button == 3) {
radius += e.localDragTranslation.x;
}
}
}
}
import javafx.ui.*;
import javafx.ui.canvas.*;
Canvas {
content: [
Rect {x: 50, y: 50, width: 50, height: 50, fill: orange },
Circle {
var x = 50
var y = 50
var radius = 30
var color = red:Color
transform: bind translate(x, y)
radius: bind radius
fill: bind color
onMouseDragged: operation(e) {
if (e.button == 1){
x += e.localDragTranslation.x;
y += e.localDragTranslation.y;
}
if (e.button == 3) {
radius += e.localDragTranslation.x;
}
}
onMousePressed: operation(e){
color = Color {blue: 0.0, green: 0.0, red: 1.0, opacity: 0.5};
}
onMouseReleased: operation(e){
color = red:Color;
}
}]
}
You can test this examples with thhe JavaFX Pad or using Netbeans with the JavaFX Plugin.